Wave-detector.



Wu-SCHL0EIV|H CHlv WAVE DETECTOR.

APPLICATION FILED MAR. 13, IsIz.

LQMITWI, Paname@ Feb, I1, 19m,

-or mechanical niagnei'.

To all whom. I? may concern:

Be it known that li; 'iilnann'm Sonnen Minen, a citizen of the Empire oft Germany, and residing at'. Berlin, Gerneany7 have in`-` vented cerlain new and, nseiini nifirirove ments in inve-Detectores. of'whieh the foilon'ing is a specification.

The subject-matter of my invention an apparans, operating without*r an auxiliary Source of cnrren, for rendering eleeibric oscillations perceptible, in which the part sensilive to waves consists of 'two goed electrically conducting elecri'xles which eontaet one with another and move eliilingly `one on the other.

Such an arrangement' which. when Stationary, eonstilntee niereiy a short-eircnit1 actus` when the eoniac pieces slide one on the other, as a wave-iniiientor which oy far excels all detectors known heretofore in sensilivenees when ooili the eontaet nate and ite surface and also the speed it which. the eon'zaci. pieces move .reiaively to one nnohei are correctly chosen. lin addition? there is he great advanage that such a re ceiver cannot be injnrei'l either hy almospheric influences ,or by eecirie overhmclinp,l

Shocks'.

Severai illustrative einbmiinien'nsl of my invention are representeL oy wey of ei;- aniple in the accompanying drawing, Wherein :d

Figures Tl. anni 2 ere diagrams and Fig. '3 is an eievaiiion diagraininaticaily showing three diiierent embodiments of the inventive idea on which the inveni'ion is loafsecl;

Y 4 and 5 are two iiiagrranis of con nectio'ns 'for wave-ileieetors aeeoriiing l'o my invention, and

Figs. G, 7 and 8 are front elevaion, siile elevation, :m rop plan view. reepeciively,

showing a eonsrnctional forni of my wavedeteetor nccorciing #o Fim B.

Referring first to Fig. 'L he electrodes an and preferably silver or gold wire. permanently Contact with one another. and one of them is reeiprocaed upon the olher, he simplest-way in which Jfhis may he brought about, being an elei'h'omafnetic inferi-unici' as Shown in Fig. l. i

in i" 's ipjnre. i5 inilieaies ihe eleeiroic inerrnptei ogieraefi ny iiatlery The eieczi'oiie wire in aliaeiieii in he member iii 'of lie ii'iizerrnier i (i. osciiiei eeived hy he iclen however, are

@minnie-1l ,llfeln 7 il., MEW,

Serial No. @83,536

mi an insnialed portion 1'?. By this 'rent the wire o is znoieil in apid s upon wire a.

einlmiinnentz shown in Fig. he

in the eln'nng; conacl; is formed, on the one hand,

by tivo syringe al hand, by :in enriieee wire b1 running over the two rollers a and ('Z which can he driven hy a. clockwork or by an eieetiic motor (not Shown) A in the embodiment shown in Fig. 3, the siationary eontaet piece is a preferably adjustable Spring L3 nml the movable Contact piece n. rotaialiie (liek h2 which can he driven in any suitable manner by a ilriving device.

The efficiency oi my improved wmode iiecor may he enhenninily cine to the ne- Sistanee of ille eoniaet varyiiig in very rapid sneeession in consequence of he micro- Seopi ,ally small nnev'v iessses of -@he confie-cib snrne The improved. living de vine iherer has a certain .ei niariigy with the ticker. iiihere-.is eiegrai'shic sigrfiais ru in ehe telephone `noiies very similar to ihose prodiicefi oy atmospheric riisatnrbances, the aeonsie forni of the Signals rereiveci by my improved device is so nnioim that these eannot'he confused with atmospheric disinThanCeS.

For receiving Signals. 4besides the ticker connections all those receiving Connections which have proved satisfactory for contactilehecorny are aflanieil for use with my iin- ])ro-ved device. The receiving; Connections shown in the ilraivi'lg' hy Way oi= example have. nroveii very s: eiaciiiry in prae'ice for the new arrangement.

eiierring io the 'aweaielector n., 7. is locai'eil in a inneil owzillal'ory circuit v'. A elephone e havingr choking' coils (l and k eonneeeii in seriesl #herewith is connected in paraliel n'ih he (ieteclor.

in the arrangement according to Fig. 5 i'he sliding; fleieeior n., 7) is located in The aperiodic eirenili which is coupled Wih the tuned oseillamnv Circuit i'. 1in-consequence of ihe long; periods of discharge telephones having' very great helf-inClnefion and therefore requiring? a longer duration of-closnre can be nsseci. W hen snch telephones are employed the chokingr coils f/ and ,fi Shown in Figs. i and 5 may he oinitiiecl.

in adflition to the advantage of boing able to use telephones of any deired self-inducinnl a? and, on the other- .lill

@Gli

clockwork can lie stopped or started es flef Hired by e lmnrlle 2. The point of :i line npivzlrdlylicnt platinum wire l beers zlgziinet tlie underside oif the disk l. For adjusting l'lie :liek and litininn Wire l, provide (lifteren, (lei/ieee ivi., Ali adinet the point 'in 'two directions, neinel v one ncljneting device For the vertical :nfljnel'inent und tiene the ecljust nient oli' lille ilegrree of pressure, :incl another adjusting device jlor radially adjusting' the Sliding point relatively to the exis of the (liek. For the vertical erljuetment :ire proviiflef'l in reality 'tivo devices; tlie platinum n ire is :itlmflierl 1.o e lnieliing l 'irliicli een lie rotated..eliiont :i liorizonlnl axle ley e liemlle i. This loneliing attached to e tivo nrinerl lever 6 'wliicli een be rocked about i second horizontal mile by incline en adjusting Screw The first of these tivo ,letter Clevices bringe about the rougir :incl the :aecoinl Ythe line adjustment.

The entire pressure adjusting; device inet described now is rotatable, about e vertical axle .i so that the pletinuin `.vire can lie luljnstecl radially relatively to the exis oT' the disk l und thereby 'the reletiveepeetl between the .Wire nifl (liek muy loe veriofl et 'will A bushing' carrying e spare Contact wire may be pushed on :1` pin l() so that. in the event ofjnjnry to the operating wire, a Spore Wire is iinniedizlliely available.

Frein all the molliiicelions shown und cleecri'eecl, it eppefxrs that lille principal novel feature @f my invention is tlle elniiloynient of tivo metal electrodes in :i circuit Without en auxiliary ,lill/lll. which wes necessary heretofore in such enses. The circuit or cir cuits in Wliicli these elect-redes are located (lo not contarle any source of E. lil/l'. l?. under normal conrl...tione end carry only tlie currents"`producefl by the received oscillations. l Shell therefore ileline in tlie annexed claims the circuit containing said electrorlee, n. normolly deed circuit in contredletinction to similar devices known in the nrt, in which the arrengeinent of the electrodes requires e normally live circuit7 that to snfy :L circuit in Wliicli e permanently active source of l5. M. l?. is proviclerl es one of its i'iecessnry elements.

l clein'i:

ln si, were detector, :i cirenit for elec tric cecilletione, el'eeietanre in Snirl. circuit,

:i normally leed circuit shouting 'the seid rcsielience, en indicating device in the letter cilcuit, enti ineens .inclepenrient of the electric oscillations for producing rapid verintions in Seid resistance, wliereby correspending variations ere produced in the currents passing through the shunt circuit and the indicator.

2, A weve detecter comprising in combi notion :L suitable stationery metallic electrode? e movable metallic electrode Contacti ing with the stationery electrode, enel inerme for Sliding the lnevelile on the Stationery electrode et :i Suitable Speed, e. nen'nrlly (lend electric circuit containing,I seid electrodes and e receiver, tlie sliding of seid electrodes upon eecli other causing e suc cession ol? repifl variations of resistance bei tween the electrodes, :incl ineens for conducting electrical oscillations tlirongli Seial electrodes wliereliy Scifi oscillations ere per-- ceiveffl in seid receiver ee sounds of Substanlinlly eonelient amplitude.

3. il weve detector connprising in combinnl'ion. e Stationery metallic electrode, fr mov* v elile metallic electrode contacting' with. the

sin ionzrry electrode, end means for Sliding tl movable on llie Stationery electrode at e jnstnlile ineens lor pressing Seid. Wi re z-rgninet' seid clislr :incl for radially adjusting seid 'wire relatively 'to Seid :liek :intl ineens for rotating Seid rlislr et e constant speed, e norrnnlly dead electric circuit containlinea eeirl electrodes :und e receiven the Sliding olsnirl electrodes: upon each other causing esecceesion of ropirl 'variations of resistance lielvfecn the electrodes, :incl ineens For conductingi electrical oscillations through seid electroilee whereby seid oscillations ere perceiveil in seid receiver are sounds or Substantially cenet-:mt enmlitncle.

ln testimony whereof, l'. :illix my Signe.- ture in tlie presence of 'two witnesses.

lllllllllllllll Stll'llylllMUJUH, lili tnesees z 'llimirr ll'Asrini, lileLneMAiz irl-limer.

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